pressure

[1]	persuade , influence , prevail upon/on , press , urge , sway , intimidate , bring pressure to bear (on) , apply pressure (on/to) , coerce , force , compel , constrain , require , demand , make , insist upon/on , (Brit) pressurize , (Colloq) twist (someone's) arm , lean on , turn the heat on , (Slang) put the screws on/to
[2]	coerce , hale , squeeze , force
[3]	blackmail , blackjack

[1]	pressure level , force , force per unit area , compression , weight , power , strength
[2]	compression , pressing , squeezing , compressing , tension , stress , crushing
[3]	affliction , press , pressing , oppression , press , weight , burden , load , albatross , strain , stress , urgency , demands , exigency/exigencies , vexation , distress , trouble(s) , adversity , difficulty/difficulties , straits , constraint(s) , problem(s)
[4]	imperativeness , influence , power , insistence , insistency , sway , constraint , press , insistence , coercion , intimidation , arm-twisting , inducement , persuasion , urging , pressing
[5]	pressure sensation
[6]	atmospheric pressure , air pressure